In England and Wales, why did the first gay marriages take place 15 days after the law recognizing same-sex partnership became effective
A．The couple has to declare publicly, in written form, that they are willing to marry each other at least two weeks before the wedding ceremony.
B．It normally takes the couple 15 days to get ready for the wedding.
C．It takes time for the public to accept "gay marriages".
D．People still have a bias against "gay marriages".